DJV is a new member of the DEJAVU. The DEJAVU DJV Mech MOD is designed in Malaysia by the Youtube reviewer Adrian Lo Dejavu. Working with single 18650 battery that features the available two types of buttons. Plus the spring and magnetic switch, you will operate the DEJAVU DJV Mech MOD easily. And the DEJAVU DJV also comes with the innovative hybrid system that you can pair the DJV with other 510 atomizers directly through the hybrid 510 connection.